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Annual Phosphorus Forum

Annual Phosphorus Forum

Annual Phosphorus Forum

The Sustainable Phosphorus Alliance hosts an annual Phosphorus Forum in which knowledge leaders interact around topics related to phosphorus sustainability. The Phosphorus Forum is an excellent opportunity to network with diverse organizations and people. One free ticket is provided as a benefit of

What can you expect from Phosphorus Forum 2024?

Develop knowledge. Learn from top practitioners and researchers about pressing phosphorus issues and innovative solutions.

Build partnerships. Network with professionals from diverse perspectives who share your interests and concerns.

Discover opportunities. Learn about emerging collaborations, new approaches and technologies, and funding opportunities.

Enjoy the weather. Tempe has a beautiful 71°F average highs in February. No snow, no coats, no windshield scraping.

February 21-22, 2024

  • Hyatt Place Tempe
  • February 21-22, 2024


  • Pedal Haus Tempe
  • February 21, 2024
  • 5:00 – 7:00 pm
  • $15
Phosphorus Forum 2022 image banner link

In 2022, Phosphorus Week brought together an international network of over 200 stakeholders from across the phosphorus value chain to discuss holistic solutions to vexing phosphorus sustainability issues. The week combined into a four-day event the annual Phosphorus Forum (November 1 and 2) with the biennial Sustainable Phosphorus Summit (November 3 and 4).

A poster session and reception was sponsored by the generous support of Verdesian Life Sciences.

Slide Decks

November 1st: Phosphorus Forum

November 2nd: Phosphorus Forum

November 3nd: Sustainable Phosphorus Summit

November 4th: Sustainable Phosphorus Summit

Phosphorus Forum 2020 image banner link

Phosphorus Forum 2020 was held virtually on Sept 30 and Oct 1, 2020. Participants from 15 countries included scientists, NGOs focused on water quality issues, nutrient recovery technology companies, fertilizer manufacturers, food producers, water utilities, farm consultants, government regulators, agricultural suppliers, phosphate mining companies, and others.


September 30: Sustainable P Recovery and Reuse

Sept 30 Slide Deck

  • Regulation of Derived Products for Agricultural Use
  • National Inventory of Animal Feeding Operations
  • Economics of Small-Scale P Recovery
  • Enhancing Phosphate Production Through Nutrient Recovery

October 1: Sustainable Phosphorus Use

Oct 1 Slide Deck

  • Coastal Eutrophication
  • Pay-for-Performance Program for Nutrient Pollution Mitigation
  • OCP North America’s Perspective on Phosphorus Sustainability
  • Phosphorus Transport Modeling
Phosphorus Work Group Session
Phosphorus Work Group Session

Phosphorus Forum 2019 took place in Washington DC at the Ambassador Barbara Barrett and Justice Sandra Day O’Connor Washington Center at Arizona State University. Our keynote speakers were Dr. Kathleen Merrigan, former U.S. Deputy Secretary of Agriculture, and Professor Bruce Rittmann of Arizona State University, 2018 Stockholm Water Prize Laureate.


Below are links to PDFs of the slide decks used during the presentations at the Phosphorus Forum 2019 event.

Phosphorus Forum 2018

The Sustainable Phosphorus Alliance convened our second Phosphorus Forum event on February 27, 2018, in warm and sunny Tempe, Arizona. A network of organizations from across the phosphorus value chain gathered to explore holistic solutions to vexing phosphorus sustainability issues. Keynote speakers included Drs. Sally Rockey, Executive Director of the Foundation for Food and Agricultural Research, and Paul Fixen, retired Senior Vice President of the International Plant Nutrition Institute.

Below are links to PDFs of the slide decks used during the presentations at the Phosphorus Forum 2018 event.

Phosphorus Forum 2017

On May 19, 2017, the Sustainable Phosphorus Alliance held our first Forum addressing critical issues in phosphorus sustainability. Guests watched presentations and networked with industries, scientists, and policy makers interested in closing the loop on phosphorus use in the food system. Newtrient President Steve Rowe gave the keynote presentation.

Below are links to PDFs of the slide decks used during the presentations at the Phosphorus Forum event. The keynote talk by Steve Rowe is provided in both PDF and PowerPoint formats. The PowerPoint file includes embedded videos that may be viewed when PowerPoint is in presentation mode.